The Use of Carbon Nanoparticles for Inkjet-Printed Functional Labels for Smart Packaging

Figure 8

The dependencies of intensities of own photoluminescence (photoluminescence without paper) of the inkjet-printed images at  nm on relative area of raster elements of raster fields on paper A (low absorbance), paper B (average absorbance), and paper K (the highest absorbance among the studied papers). The concentrations of carbon nanoparticles in the ink composition are the following: (a) 25 mg/mL, (b) 10 mg/mL, and (c) 5 mg/mL.

(a)

(b)

(c)